MAX9776EBX+T

Audio Amplifiers Overview

The MAX9776EBX+T is an audio subsystem integrating a stereo Class D power amplifier and a DirectDrive headphone amplifier. It delivers up to 1.5W of stereo speaker output at 4 ohms with a 5V supply, alongside 50mW mono receiver or stereo headphone outputs at 32 ohms with a 3.3V supply. The device operates on a single supply voltage ranging from 2.7V to 5.5V. Key electrical characteristics include a power supply rejection ratio of 68dB at 217Hz, efficiency up to 79% at 3.3V, and total harmonic distortion plus noise of 0.03% at 1kHz.

Audio Amplifiers Feature Summary

• Integrates unique spread-spectrum modulation and active emissions limiting to significantly reduce electromagnetic interference.
• Features I2C control for programmable input configuration, volume adjustment, and output mode selection.
• Includes click-and-pop suppression mechanisms to ensure silent startup and shutdown transitions.

Audio Amplifiers Applications

• Cell phones
• Portable multimedia players
• Handheld gaming consoles

Audio Amplifiers Procurement Notes

Verify the specific suffix EBX against current manufacturer documentation to confirm package type and tape/reel specifications. Confirm availability status as distribution channels may list limited stock or obsolete status. Ensure compatibility with required operating temperature ranges and supply voltage levels before finalizing procurement orders.

Audio Amplifiers Selection Notes

Select this component when designing portable audio systems requiring integrated speaker and headphone amplification in a compact form factor. The I2C interface allows for flexible system control and volume management. Consider the ultra-low EMI features for applications sensitive to radio frequency interference.

Audio Amplifiers Part Context

This part belongs to the MAX9776 family of highly programmable audio subsystems. It combines high-efficiency Class D amplification with direct-drive capabilities for receivers and headphones. The series is designed for mobile devices where space and power efficiency are critical constraints.

Audio Amplifiers Replacement Considerations

The MAX9775 is a related variant within the same family, offering similar functionality but including 3D stereo enhancement features not present in the MAX9776. Verify pinout and feature set compatibility before substitution.